I'm also thinking of creating some small map (that doesn't take forever to map). I can handle lua well so gameplay complexity isn't a problem... neither is mapping, I can create some neat stuff in little time. But if starts taking too much time, it's very common for me to get bored and abandon the project.

Hide and seek maps need big and complex maps so I think I'll pass on those. I also don't know almost anything about custom TFC maps so if you're suggesting those, describe them a bit (I played and mapped for TFC over 3 years, I just never bothered trying other peoples' custom maps ). I prefer maps that can be played with only a few players (4-8 or so), since it's difficult to get a custom map on servers with lots of players.